add: create worker account on first launch

src/main/java/com/bib/essensbestellungsverwaltung/Parent.java

@@ -4,21 +4,30 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * one constructor is used to create new parents the other is used to create existing parents from database
+ * one constructor is used to create new parents the other is used to create
+ * existing parents from database
+ * 
  * @author Malte Schulze Hobeling
  */
-public class Parent extends User{
+public class Parent extends User {
     List<Child> children;
 
-    public Parent(long id, String name, String firstname, String password, String email, Address address, List<Child> children) {
+    public Parent(long id, String name, String firstname, String password, String email, Address address,
+            List<Child> children) {
         super(id, name, firstname, password, email, address);
         this.children = children;
     }
+
     public Parent(String name, String firstname, String password, String email, Address address) {
         super(name, firstname, password, email, address);
         this.children = new ArrayList<>();
     }
 
+    public Parent(User user) {
+        super(user.getId(), user.getName(), user.getFirstname(), user.getPassword(), user.getEmail(), user.getAddress());
+        this.children = new ArrayList<>();
+    }
+
     public List<Child> getChildren() {
         return children;
     }